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133468608 = 2637137639
BaseRepresentation
bin1111111010010…
…01000111000000
3100022010220111210
413331021013000
5233131443413
621124410120
73210315210
oct775110700
9308126453
10133468608
1169380a39
1238846940
1321861510
1413a24240
15bab63c3
hex7f491c0

133468608 has 112 divisors (see below), whose sum is σ = 434685440. Its totient is φ = 35195904.

The previous prime is 133468607. The next prime is 133468619. The reversal of 133468608 is 806864331.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133468607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13653 + ... + 21291.

It is an arithmetic number, because the mean of its divisors is an integer number (3881120).

Almost surely, 2133468608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133468608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217342720).

133468608 is an abundant number, since it is smaller than the sum of its proper divisors (301216832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133468608 is a wasteful number, since it uses less digits than its factorization.

133468608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7674 (or 7664 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 133468608 is about 11552.8614637240. The cubic root of 133468608 is about 511.0456669550.

The spelling of 133468608 in words is "one hundred thirty-three million, four hundred sixty-eight thousand, six hundred eight".

Divisors: 1 2 3 4 6 7 8 12 13 14 16 21 24 26 28 32 39 42 48 52 56 64 78 84 91 96 104 112 156 168 182 192 208 224 273 312 336 364 416 448 546 624 672 728 832 1092 1248 1344 1456 2184 2496 2912 4368 5824 7639 8736 15278 17472 22917 30556 45834 53473 61112 91668 99307 106946 122224 160419 183336 198614 213892 244448 297921 320838 366672 397228 427784 488896 595842 641676 695149 733344 794456 855568 1191684 1283352 1390298 1466688 1588912 1711136 2085447 2383368 2566704 2780596 3177824 3422272 4170894 4766736 5133408 5561192 6355648 8341788 9533472 10266816 11122384 16683576 19066944 22244768 33367152 44489536 66734304 133468608